CVE-2023-4807

openssl: POLY1305 MAC implementation corrupts XMM registers on Windows

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Severity

Low

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · September 8, 2023

Updated · August 10, 2026

Description

A vulnerability was found in OpenSSL. The security issue occurs in the POLY1305 MAC (message authentication code) implementation, that contains a bug that might corrupt the internal state of applications on the Windows 64 platform when running on newer X86_64 processors supporting the AVX512-IFMA instructions.

Statement

This issue does not affect Red Hat Enterprise Linux 6, 7, 8 and 9 as this security issue only affects Windows 64 platforms.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-347 · Improper Verification of Cryptographic Signature